Machine for forming imitation shakes



Oct. 28, v1930. c. E. PUTMAN MACHINE FOR FORMING IMITAFLION`SHAKES` Filed Sept. 5, 1927 2 Sheets-Sheet Patented ocr. `28,,1930

CHARLESE. PUTMAN, F SEATTLE, WASHINGTON MACHINE rony roRMING IMITAT'ION sHAKEs v Application` filed September y This invention relates generally to the shingle makers art, and particularly to a machine for forming groovesin the weather portion of sawed shingles forthe purpose of imitating split shakes;VV i

v j `The iir'st object of this invention is to provide a machine for grooving the weather p0rtion of sawed shingles in irregular waves for the purpose of closely resembling a split lo shake without the accompanying objections of airways being formed between the shingles when laid for the purpose of securing greater vwarmthL and to theexclusion of Y f members 10 and 11 are the upright standards insects. Y. Y i5 The second object is toiprovidea machine which will not only groove the sawed surface of a shingle in irregular ways buty isso constructed that notwo consecutive shingles will be exactly similar in appearance, `therebylde- Y y2o parting from the common objection to artificially created objects or appearances. The third object is to-'produce af shingle grooving machine which can beset to groove la shingle a yfixed distance from its tip` and butt end independently of any qualities in the shingle thicknesses. n c

The fourthv object is to produce a shingle grooving machine which will groove only 4a portion of the weather side of the Ashingle and to a uniform depth throughout theentire length of such grooving instead rof gradually running out.

Y The fth' object is to so constructthe ma.

Y chinethat each shingle passing through the machine is automatically branded with the desired marking. f

c These, and other objects, will become more apparent Vfrom ythe specification following as illustrated in the accompanyingdrawings, in

which: 'Y c Figure 1 is a plan of the entire` machine.

Figure 2 is a vertical transverse section taken throughV the machine along the line 2-2 in Figure 4. Figure Sis an enlarged fragmentary perspectiveview of va cutter blade. Figure 4 is a side elevationfof the machine with a portion of its structure broken away to disclose the shingle passing through the machine. Figure 5 is` a transverse Section through the lateral wave cam shafts showportion of y whose Vweather side resemblela split shake. Y

tion 23` formed near its mid ysection between:

1927.k serial No. 217,511.

- ing the two cams in 4position for the straight groove. Figure is similar to Figure 5 but showing thevcams in a position to vproducey two distinct waves in one shingle. Figure 7 is a perspective view of a. processed shingle a is made to Similar numbers of referencerefer to similar parts throughout the several views.

Referring in detail to the drawings; the '6oy machine itself consists of horizontal and'longitudinal frame members 10 and 11 which. are joined by the cross ties 12. Between the 13 across whose upper end is securedthe h0rizontal tie `14 between which and the member 11is secured the'short upright `15. End legs 16 unite the members 1Q f and 11 to the base 17. j v

VMounted across a pair of members k11 is 70 a shaft 18 whose ends are supported inthe bearings 19. On the shaft 18 is mounted a pair of sprocket wheels 20 and also the legs 21 of a hinged table 22 having a cut-out porthestandards 13.4 Y Y f y The oppositeend of the table 22 is provided with the, legs 24 in which journals a shaft 25 on which are secured the table raising Acams 26 which rideon Vthe .rollers 27, which are mounted on the bearings 28 on the members 10. VOn the shaft 25 are alsoV mounted the sprocket wheels 29 which are in line with the sprocket wheels-20 and the chains 30 pass around the sprocket wheels 20A `and 29, as well as the 'sprocket wheels 31 which are mounted on the shaftv 32 which journals inthe bearings 33 on the legs 16.

Between the upright standards 13 areise-y vcured the horizontal brackets 34 on which are e0 mounted the bearings for the shaft 360i' the cutter head 37, whose blades 38 are pro-A vided withY the irregularly grooved teeth 39 adapted to form a cross section in the surface of the shingle similar to that shown in the 9 surface 40 of the shingle 41 whose surfacer42 nea-r its tip remains untouched as it passes through the machine. The shaft 36 of the cutter head 37 is directly below the opening 23 in the table 22, and -10( the teeth39 of the blades 38 project slightly above the surface of the table 22 when the cam 26 does not have its lobe 43 contacting with the roller 27.

Across the chains 30 are secured the pusher bars 44 which engage the butt 45 of the shingle 4 1 and feed it through the machine. Abovethe -table 22, and along opposite edges of the opening 23, are the presser' rollers 46 and 47 which are mounted on the arms 48 and 49 which, in turn, are hinged on the pivots- 50 in the uprights 13 and 15. Springs 51 on the bolts 52 are used to urge the rollers 46 and 47 downwardly. The cross ties 53sup.- port the upper ends of the springs 51.

. `Oax theshaft 36 is placed a pulley 54eround #which passes the drive belt 55 from any suitable source of power. y On the shaft 36 is placed a smaller pulley 56 whose l,belt 57 .passes around the larger pulley-58 on vthe first kcounter shaft-59 whose pinion 60 meshes with the gear 61 on the second counter shaft 62. Onthe second counter shaft 6,2 is also mounted a gear 63 which meshes with the gear 64 .on the branding roll shaft 65 which journals inthe hearings 66 and carries the branding 67. The branding roll 67 is not a comoylinder, but a segment which permits the 4table 22 tobe raised when the ,tip 420i thexshingle 41 is passing the cutter blades 38. Meshing with the gear 61 is a gear`68 which drives thefirst lateral wave .cam shaft 69 on Whose outer end issecured the first lateral Wave cam 70. The shaft 69 journals inthe bearings `71. On the shaft 69 is secured a @eed-changing gear 72 which meshes with 'ailelmnd lspleedchianging gear 7 3 on the stud 74. 0n lthe stud 74- and secured tothe gea-r 7 3 is a third speed`changing gear 75 which meshes with -a fourth speedchanging gear 76 formed on the end of the sleeve 77 which journelson Athe shaft`69 kand has secured to its .onterend a cam 7 8, which is just inside of the -m70. f l

Abell crank lever 79 has one .of its arms 8O extending'across both of the-cams 70 and v7 8 andis urged toward them by the spring 81.

The opposite end 82 of the -bell crank lever v7.9 is forked to engage the groove83 in the mtter head 37.

This arrangement of gears causes the cams mand 78 to be driven at slightly different speeds,-which results in a constantly changing y 'moving as it passes the cutter blades 38, it

reciprocating motion being supplied to the cutter shaft 36, and since the shingle 41 is vWill, for example, be either grooved with a plurality of straight groovesapproximately parallel to the sides of the shingle (if the cams are in theposition shown in Figure 5) or will #be given one or two waves in either direction l ril/xmdfalong any portion of the length of the groove, depending upon which intermediate position the cams assume, as, for example, as shown 1n Figure 6. f

On the shaft 25 is secured a sprocket wheel 84 whose chain 85 also passes around the sprocket wheel 86 on the shaft 62 which supplies the movement for the chain 30.

The operation of the machine is as follows: The operator places the shingle on the table with its tip foremost so that one of the pusher bars 44 will engage the butt 45 of the shingle 41. The constantly moving bar 44 now pushes the shingle tip 42 foremost under the rollers 47 and 46. Atthe instant the tip 42 is above the cutter, which is the moment it is not desired `to `process the shingle owing to the cxtreme thinness of such tips and the desirablity of the close laying of the shingles .on the roof or wall, the lobe 43 is caused to re upon the roller 27, which raises the ble 22, Mid with it .the shingle 41 clear of theautter blades 38. However, asthe tip 42 passes the cutter the lobe 43 `drops ofl' ofthe 'roller 27 and allows the shingle 41 to abruptly .come

kin Contact with 'the revolving cutter blades 38 instantly starting the fluting process. This is especially desirable, owing to the fat that the flutes are not uniform but extend in shollow waves across the shingle, each 0f the waves being itself iluted with rather ne grooves, as can be seen-in Figure 7.

It will be noted that, regardless Vof the .thickness of the Vshingle 41, the rollers 46 and 47 will yield to accommodate themselves to such thickness f As the shingle passes through themachine it finally comes in contact with the branding roll 67 and .emerges from the machine fully processed ,and branded.

As the next shingle passes through thevnavrchine the cams 70 and 78 have assumed edifferentirelation to each other, which results in `a different lateral wave being formed in the surface of the shingle, so that no two inseeutivev shingles will be same in appearance `when laid.

Naturally there will come a time when the relation of the cams is again repeated., although such relationships will be far enough apart to remove the objectionable sameness common inimitation articles of manufacture.

y This machine has therefore been designed Y kto reproduce the lateral wave since itlends itself to easy manufacture and creates the best impression when completed.

I am aware that many forms of grooving machines have been constructed in thepast in which various devices such as :wash boards an opening through which said cutter can pro-` i ject whenV said table is lowered; a conveyor for moving Ashingles along said table across said opening; and means for supplyingconstantly changing lateral reciprocating movement to said cutter head, whereby the machine will produce a series of shingles each having a dissimilar arrangement offilutes.

2. `A shingle fluting machine having a cutter adapted to form apluralitv of irregular` grooves in the weatherside of a` shingle, said cutter havingtwo independent but cooperating means for reciprocating same laterally with relationfto a shingle being grooved by said cutter While it is forming longitudinal grooves in same. f i 3. A shingle fiuting machine consisting of a rotatable cutter having irregularly fiuted cutting blades mounted thereon; a table hingedly mounted over said cutter having means for intermittently moving same away from said cutterfor thev purpose of rendering same momentarily inoperative; means for reciprocating said cutter head longitudinally on its axis with lateral relationto said table; and Va conveyor for moving shingles across said table in a manner that the tip of said shingle is passing said cutter While same is not in contact with the shingle.

4. A shingle iiuting machine having a ro- Atatable fluted cutter; means for reciprocating said cutter longitudinally with its axis in a manner to produce curved flutes on a shingle passing said cutter; and means for automatically varyingthe degree and position of such curvatures, so that'each shingle of a large series of shingles will be differently grooved whereby'when they are placedtogetlier on a ing movement between same, the time, degree and position of said movements con-v stantly changing with succeeding shingles,

and'branding rolls lfor marking each of said shingles as it emerges-from said machine.-

6. A shingle `iuting machine having a frame; a iiuted cutter mounted in said frame; aI table hinged on said frame above said cutter having an opening therein through' which'the cutter can yproject when the .table islowered a conveyor for'inoving shingles acrosscthe opening in said table; cams for raising said table away from said cutter as the tip of the shingle passes over said opening; yieldable pressure rollsl ons'aid table Vforliolding said vshingles against said table inl their travel yover same; and a branding roll on the opposite end of said tablewhereby a brand can be appliedto the unprocessed. side' of a shingle as it passes said roll.

7. A shingle lutmg machine having a cutter; means for reciprocating said cutter 1ongitudinally with its axis consisting of -a forked bell crank lever engaging the end of the cutter shaft; a pair of cams rotated at ing same at unequal speeds; a cam on each shaft; a bell crank levery having one end which can engage either or both of said cams at the same time; a rotatable cutter having aslidable' mounting rand yhaving its `spindle connected to the second end of said-bell crank lever; means for passing ashingle-against said cutter in a mannerto form grooves thereon across its entire weather side, except its tip portion; and means for branding the unprocessed side of said shingle as lit passes though said machine.l

9. In a surface treating device, a rotary shaft, means for revolving the shaft, a tool on said shaft, means for supporting a body the surface of which is to be treated, means for causing relative movement between thek shaft and the supporting means so that the tool acts on said body, and means for moving the shaft axially as it revolves, said last mentioned means including two members moving at different rates of speed either capable alone of shifting the shaft along its axis, but both cooperatingto so move'the shaft, whereby the'shaft is shifted in constantly changing fashion. n

10. The device of claim 9 in which the tool is a. rotary cutter, the body is a block of wood in shingle'shape and the speeds of the two members are such that the shingles are each cut with ka different groove so as to produce on a roof a pleasing non-uniformity.

ll. The device of claim 9 in which the members are coaxial rotary cams.

l2. VIn a shingle treating machine, a rotary i 4 Y www? ghftracutteronsad shaft, means for shifting$heutter lateraHy in kconstantly chan ing dsglee, kand .means .for moving Shing e `blanks past thefcutter and for ntrlnttently aum/nhg the blank out of the path of-the cut in :Without altering the lateral shifting of tbutter shift, f 13. The, Combination with a revolving cutfte; for .growing the face of a Shinglqf n 10 omyorfor moving a series .of shin le blpks past the Cutter, means for shifting t 1e .wtterltlfrally at constantly changing speed, 1Q onveyor :being driven ai: a yspeed ynot v ingdxreatly wlth the speed of the cutter 5 so. the various shingles lare grooved in mnrunlfarm manner.

CHARLES E. ,PUTMAN RIU 

